Nystagmus

Definition: Nystagmus

Nystagmus

Noun

1. Involuntary movements of the eyeballs; the presence or absence of nystagmus is used to diagnose a variety of neurological and visual disorders.

Etymology: Nystagmus \Nys*tag"mus\, noun. [New Latin expression, from the Greek expression drowsiness, from to nod in sleep, to slumber.]. (Websters 1913)

Specialty Definitions: Nystagmus

Domain	Definitions
Aerospace	An involuntary oscillation of the eyeballs, especially occurring as a result of eye fixations and stimulations of the inner ear during rotation of the body. Back to Table of ContentsMarch 2003. (references)
Health	An involuntary, rapid, rhythmic movement of the eyeball, which may be horizontal, vertical, rotatory, or mixed, i.e., of two varieties. (references)
	Rhythmical oscillation of the eyeballs, either pendular or jerky. (references)
Medicine	Chronic oscillation of the eyeballs from side to side, a condition that can lead to complete disability, produced by grossly inadequate illumination of the coal face in mines(1). Source: European Union. (references)
	Rythmical oscillation of the eyeballs, either pendular or jerky. Source: European Union. (references)
	It encodes enzymes essential to the viral replicative cycle. Source: European Union. (references)
Mining	An eye disease suffered by some miners, in which there is a spasmodic oscillatory movement of the eyeballs; in severe cases, the victim finds difficulty in walking straight. Bad lighting is generally believed to be the main cause, and is possibly aggravated by the workers lying on theirsides in thin seams. See also:mining disease. (references)
Source: compiled by the editor from various references; see credits.

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Specialty Definition: Nystagmus

(From Wikipedia, the free Encyclopedia)

Nystagmus is an involuntary jerking of the eye. Everyone has it to some extent, but it is usually abnormal when it occurs spontaneously (rather than being induced by gaze or positioning) or when looking at a stationary object.

The degree of nystagmus varies greatly between people and even in the same person at different times. Some things (such as alcohol and other central nervous system depressants) accentuate it and make it more visible. In some people, it is clearly visible naturally. There are dozens of different kinds of nystagmus. One can easily see nystagmus in someone else by having that person close their eyes and spinning them around. After a few spins, have the person stop and open their eyes. A distinct jerking of the eyes -- from side to side -- will be seen: this is rotational nystagmus. Strobe lights also produce nystagmus. It is also a symptom of many diseases.

Source: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "Nystagmus."

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Crosswords: Nystagmus

English words defined with "nystagmus": hereditary cerebellar ataxia ♦ physiological nystagmus, post-rotational nystagmus ♦ rotational nystagmus. (references)

Specialty definitions using "nystagmus": Albinism, Ocular, alcoholic nystagmus, aural nystagmus ♦ Bach test, Bach's test, Bard sign, Bard's sign ♦ congenital cerebellar ataxia ♦ Electronystagmography ♦ labyrinthine nystagmus ♦ Marie disease, Marie's cerebellar ataxia, Marie's disease, miner's nystagmus, miners' nystagmus ♦ Nonne-Marie sydrome, Nystagmus, Optokinetic, Nystagmus, Physiologic ♦ occupational nystagmus ♦ polioencephalomalacia, positional nystagmus ♦ toxic nystagmus. (references)

Non-English Usage: "Nystagmus" is also a word in the following languages with English translations in parentheses.

Danish (nystagmus), Dutch (nystagmus), German (nystagmus).

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Commercial Usage: Nystagmus

Domain	Title
Books	Les nystagmus (reference) Nystagmus as a Resultant in Accordance with the Theoretical Principals of the Physical Mechanisms of (reference) (more book examples)
Source: compiled by the editor from various references; see credits.

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Non-Fiction Usage: Nystagmus

Subject	Topic	Quote
Health		Weak nystagmus or the absence of nystagmus may indicate an inner ear disorder. (references)
		This flooding of the ears, known as caloric testing, results in nystagmus, rapid eye movements that can help a physician analyze a balance disorder. (references)
		This figure shows nerve activity associated with rotational-induced physiologic nystagmus and spontaneous nystagmus resulting from a lesion of one labyrinth. (references)
Source: compiled by the editor from ICON Group International, Inc.; see credits.

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Usage Frequency: Nystagmus

"Nystagmus" is generally used as a noun (singular) -- approximately 100.00% of the time. "Nystagmus" is used about 11 times out of a sample of 100 million words spoken or written in English. Its rank is based on over 700,000 words used in the English language. Some parts-of-speech are not covered due to the samples used by the British National Corpus. (note: percents less than one-hundredth of one percent have been omitted)

Parts of Speech	Percent	Usage per 100 Million Words	Rank in English
Noun (singular)	100%	11	106,044

Source: compiled by the editor from several corpora; see credits.

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Expressions: Nystagmus

Expressions using "nystagmus": alcoholic nystagmus ♦ aural nystagmus ♦ labyrinthine nystagmus ♦ miner's nystagmus ♦ occupational nystagmus ♦ physiological nystagmus ♦ positional nystagmus ♦ rotational nystagmus ♦ toxic nystagmus. Additional references.
Source: compiled by the editor from various references; see credits.

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Frequency of Internet Keywords: Nystagmus

The following statistics estimate the number of searches per day across the major English-language search engines as identified by various trade publications. Hyperlinks lead to commercial use of the expression at Amazon.com.

Expression	Frequency per Day
nystagmus	231
horizontal gaze nystagmus	13
congenital nystagmus	7
damage eye muscle nystagmus	4
nystagmus vertigo	3
cause nystagmus	3
vertical nystagmus	3
gaze nystagmus	3
horizontal nystagmus	3
nystagmus treatment	3
gaze horizontal nystagmus test	2
infant nystagmus	2
memantine nystagmus	2
Source: compiled by the editor from various references; see credits.

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Modern Translations: Nystagmus

Language		Translations for "nystagmus"; alternative meanings/domain in parentheses.
Arabic		‏الرأرأة تذبذب المقلتين السريع اللإرادي. (various references)

Chinese		眼颤. (various references)

Danish		nystagmus. (various references)

Dutch		nystagmus. (various references)

Finnish		positionaalinen nystagmus (positional nystagmus), asentonystagmus (positional nystagmus), asennosta riippuva silmävärve (positional nystagmus). (various references)

French		nystagmus des mineurs (miner's nystagmus, occupational nystagmus), nystagmus des houilleurs (miner's nystagmus, occupational nystagmus), nystagmus, nystagme. (various references)

German		Nystagmus. (various references)

Greek		νυσταγμός. (various references)

Italian		nistagmo. (various references)

Manx		leaystey sooilley. (various references)

Pig Latin		ystagmusnay

Portuguese		nistagmo. (various references)

Russian		нистагм. (various references)

Spanish		nova (nova), nistagmo. (various references)

Swedish		lägesbetingad nystagmus (positional nystagmus). (various references)
Source: compiled by the editor from various translation references.

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Derivations: Nystagmus

Derivations
	Words beginning with "nystagmus": nystagmuses. (additional references)
Source: compiled by the editor, based on several corpora (additional references).

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Rhyming with "Nystagmus"

Words rhyming with "nystagmus" (pronounced 'Nys*tag"mus'): Accismus, Bulimus, Chiasmus, Cormus, humus, IGNORAMUS, isthmus, litmus, mandamus, marasmus, Momus, Polyphemus, Primus, Ramus, Rhythmus, strabismus, tenesmus, Thymus, trismus, Ulmus, vaginismus. (additional references)

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Anagrams: Nystagmus

Scrabble® Enable2K-Verified Anagrams
	Words within the letters "a-g-m-n-s-s-t-u-y"
	-1 letter: gymnasts, mustangs.
	-2 letters: gymnast, mustang.
	-3 letters: angsts, gamuts, stangs, syngas, unsays, yamuns.
	-4 letters: angst, antsy, aunts, aunty, gamut, gassy, gasts, gaums, gaunt, gauss, gnats, guans, gussy, gusts, gusty, gutsy, magus, mangy, manus, massy, masts, mauts, mayst, mussy, musts, musty, mynas, nasty, nutsy, sagum, sayst, smuts, snags, snugs, stags, stagy, stang, stays, stums, stung, stuns.
	Words containing the letters "a-g-m-n-s-s-t-u-y"
	+2 letters: nystagmuses.
Source: compiled by the editor from various references; see credits. SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro.